All MIBs › CADANT-CMTS-UPCHANNEL-MIB
Organization: Arris International, Inc.
Last Updated: 2014-04-25
Category: DOCSIS and Cable, Vendor: ARRIS
Description: Manages DOCSIS upstream RF channel configuration, modulation profiles, and statistics on ARRIS/Cadant C4/E6000 CMTS.
Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.
What Is CADANT-CMTS-UPCHANNEL-MIB?
CADANT-CMTS-UPCHANNEL-MIB is an ARRIS (formerly Arris/Cadant) vendor MIB for managing the C4/E6000-series CMTS (Cable Modem Termination System), specifically the DOCSIS upstream RF channel configuration including modulation profiles, preamble length, differential encoding, and forward error correction settings. It exposes a modulation-profile table describing burst parameters used by cable modems to transmit upstream, plus general upstream channel parameters and conformance objects. This MIB is a configuration/performance MIB for cable access network hardware: monitoring cadIfCmtsModulationTable lets an operator verify upstream burst profiles (FEC correction, codeword length, scrambler seed) are correctly tuned, since misconfigured modulation profiles directly cause modem registration failures and elevated upstream error rates. It builds on and extends the standard DOCSIS CMTS/interface MIBs (e.g., DOCS-IF-MIB) for cable-specific channel management. It is deployed on ARRIS/Cadant C4 and E6000 CMTS platforms at cable operator headends providing DOCSIS broadband access. Engineers can download the CADANT-CMTS-UPCHANNEL-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in CADANT-CMTS-UPCHANNEL-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
- ARRIS (Cadant) C4/E6000 CMTS
- DOCSIS cable headend equipment
Monitoring Examples
An admin would poll cadIfCmtsModulationTable/cadIfCmtsModulationEntry indexed by cadIfCmtsModIndex and cadIfCmtsModIntervalUsageCode to inspect cadIfCmtsModType and cadIfCmtsModFECErrorCorrection for a given upstream burst interval. If modems on a given upstream channel show high error rates, checking cadIfCmtsModPreambleLen and cadIfCmtsModScramblerSeed against the expected profile would reveal a misconfigured modulation profile causing poor demodulation. cadIfCmtsModControl would be used to confirm whether a profile change is pending or applied.
What Can Be Monitored
- upstream modulation profile type
- FEC error correction settings
- preamble length
- scrambler seed
- differential encoding setting
This MIB depends on
Related MIBs
Imported Objects
From CADANT-PRODUCTS-MIB
| cadSpectrum | OBJECT-IDENTITY |
From CADANT-TC
| CardId |
From DOCS-IF-MIB
| DocsisUpstreamType |
From IF-MIB
| InterfaceIndex |
From SNMPv2-CONF
| MODULE-COMPLIANCE | |
| OBJECT-GROUP |
From SNMPv2-SMI
| Integer32 | |
| MODULE-IDENTITY | |
| OBJECT-TYPE | |
| Unsigned32 |
From SNMPv2-TC
| DateAndTime | |
| RowStatus | |
| TruthValue |
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| OCT cadIfCmtsModBroadcomUwDetectionWindow | 1.3.6.1.4.1.4998.1.1.15.3.1.1.17 | OCTET STRING | read-only | The WHAT |
| I32 cadIfCmtsModBroadcomUwLength | 1.3.6.1.4.1.4998.1.1.15.3.1.1.15 | Integer32 | read-only | The WHAT |
| OCT cadIfCmtsModBroadcomUwMismatchThreshold | 1.3.6.1.4.1.4998.1.1.15.3.1.1.18 | OCTET STRING | read-only | The WHAT |
| OCT cadIfCmtsModBroadcomUwPattern | 1.3.6.1.4.1.4998.1.1.15.3.1.1.16 | OCTET STRING | read-only | The WHAT |
| U32 cadIfCmtsModByteInterleaverBlockSize | 1.3.6.1.4.1.4998.1.1.15.3.1.1.20 | Unsigned32 | read-create | ATDMA Byte Interleaver Block size (Br). This object returns zero for non ATDMA profiles |
| U32 cadIfCmtsModByteInterleaverDepth | 1.3.6.1.4.1.4998.1.1.15.3.1.1.19 | Unsigned32 | read-create | ATDMA Byte Interleaver Depth (Ir). This object returns 1 for non ATDMA profiles. |
| DOC cadIfCmtsModChannelType | 1.3.6.1.4.1.4998.1.1.15.3.1.1.26 | DocsisUpstreamType | read-create | Describes the modulation channel type for this modulation entry. |
| ROW cadIfCmtsModControl | 1.3.6.1.4.1.4998.1.1.15.3.1.1.3 | RowStatus | read-create | Controls and reflects the status of rows in this table. |
| T/F cadIfCmtsModDifferentialEncoding | 1.3.6.1.4.1.4998.1.1.15.3.1.1.6 | TruthValue | read-create | Specifies whether or not differential encoding is used on this channel. |
| I32 cadIfCmtsModFECCodewordLength | 1.3.6.1.4.1.4998.1.1.15.3.1.1.8 | Integer32 | read-create | The number of data bytes (k) in the forward error correction codeword. This object is not used if cadIfCmtsModFECErrorCorrection is zero. |
| I32 cadIfCmtsModFECErrorCorrection | 1.3.6.1.4.1.4998.1.1.15.3.1.1.7 | Integer32 | read-create | The number of correctable errored bytes (t) used in forward error correction code. The value of 0 indicates no correction is employed. The number of check bytes appended will be twice this value. |
| U32 cadIfCmtsModGuardTimeSize | 1.3.6.1.4.1.4998.1.1.15.3.1.1.11 | Unsigned32 | read-create | The number of symbol-times which must follow the end of this channel's burst. Default value is the minimum time needed by the implementation for this modulation profile. A value of 0 is only valid for SCDMA modulation profiles. |
| I32 cadIfCmtsModIndex | 1.3.6.1.4.1.4998.1.1.15.3.1.1.1 | Integer32 | not-accessible | An index into the Channel Modulation table representing a group of Interval Usage Codes, all associated with the same channel. |
| INT cadIfCmtsModIntervalUsageCode | 1.3.6.1.4.1.4998.1.1.15.3.1.1.2 | INTEGER | not-accessible | An index into the Channel Modulation table which, when grouped with other Interval Usage Codes, fully instantiate all modulation sets for a given upstream channel. |
| T/F cadIfCmtsModLastCodewordShortened | 1.3.6.1.4.1.4998.1.1.15.3.1.1.12 | TruthValue | read-create | Indicates if the last FEC codeword is truncated. |
| I32 cadIfCmtsModMaxBurstSize | 1.3.6.1.4.1.4998.1.1.15.3.1.1.10 | Integer32 | read-create | The maximum number of mini-slots that can be transmitted during this channel's burst time. Returns zero if the burst length is bounded by the allocation MAP rather than this profile. Default value is 0 except for shortData, where it is 8. |
| I32 cadIfCmtsModPreambleLen | 1.3.6.1.4.1.4998.1.1.15.3.1.1.5 | Integer32 | read-create | The preamble length for this modulation profile in bits. Default value is the minimum needed by the implementation at the CMTS for the given modulation profile. |
| INT cadIfCmtsModPreambleType | 1.3.6.1.4.1.4998.1.1.15.3.1.1.21 | INTEGER | read-create | Preamble type for DOCSIS 2.0 bursts |
| I32 cadIfCmtsModPreambleValueOffset | 1.3.6.1.4.1.4998.1.1.15.3.1.1.14 | Integer32 | read-only | The preamble value offset for this modulation profile. |
| U32 cadIfCmtsModScdmaInterleaverStepSize | 1.3.6.1.4.1.4998.1.1.15.3.1.1.23 | Unsigned32 | read-create | S-CDMA Interleaver step size. This value returns zero for non S-CDMA profiles. This object defaults to 1 for S-CDMA profiles. |
| T/F cadIfCmtsModScdmaSpreaderEnable | 1.3.6.1.4.1.4998.1.1.15.3.1.1.24 | TruthValue | read-create | S-CDMA spreader. This value returns false for non S-CDMA profiles. Default value for IUC 3 and 4 is OFF, for all other IUCs it is ON. |
| U32 cadIfCmtsModScdmaSubframeCodes | 1.3.6.1.4.1.4998.1.1.15.3.1.1.25 | Unsigned32 | read-create | S-CDMA sub-frame size. This value returns zero for non S-CDMA profiles. |
| T/F cadIfCmtsModScrambler | 1.3.6.1.4.1.4998.1.1.15.3.1.1.13 | TruthValue | read-create | Indicates if the scrambler is employed. |
| I32 cadIfCmtsModScramblerSeed | 1.3.6.1.4.1.4998.1.1.15.3.1.1.9 | Integer32 | read-create | The 15 bit seed value for the scrambler polynomial. |
| T/F cadIfCmtsModTcmErrorCorrectionOn | 1.3.6.1.4.1.4998.1.1.15.3.1.1.22 | TruthValue | read-create | Trellis Code Modulation (TCM) On/Off. This value returns false for non S-CDMA profiles. |
| INT cadIfCmtsModType | 1.3.6.1.4.1.4998.1.1.15.3.1.1.4 | INTEGER | read-create | The modulation type used on this channel. Returns other(1) if the modulation type is neither qpsk, qam16, qam8, qam32, qam64 or qam128. Type qam128 is used for SCDMA channels only. See the reference for the modulation profiles implied by different modulation types. |
| cadIfCmtsModulationEntry | 1.3.6.1.4.1.4998.1.1.15.3.1.1 | not-accessible | Describes a modulation profile for an Interval Usage Code for one or more upstream channels. Entries in this table are created by the operator. Initial default entries may be created at system initialization time. No individual objects have to be specified in order to create an entry in this table. Note that some objects do not have DEFVALs, but do have calculated defaults and need not be specified during row creation. There is no restriction on the changing of values in this table while their associated rows are active. | |
| cadIfCmtsModulationTable | 1.3.6.1.4.1.4998.1.1.15.3.1 | not-accessible | Describes a modulation profile associated with one or more upstream channels. | |
| CAR cadIfUpChannelCardNumber | 1.3.6.1.4.1.4998.1.1.15.3.2.1.1 | CardId | read-only | Card Number associated with this Channel. |
| T/F cadIfUpChannelCMKeepSpectralDensity | 1.3.6.1.4.1.4998.1.1.15.3.2.1.63 | TruthValue | not-accessible | Indicates to the CMs that if is there is a modulation change, whether the CM MUST maintain its current transmit power or its current power spectral density. A value of false means the CM MUST keep its current transmit power. A value of true means the CM MUST keep the same power spectral density. |
| I32 cadIfUpChannelFrequency | 1.3.6.1.4.1.4998.1.1.15.3.2.1.4 | Integer32 | read-write | The center of the frequency band associated with this upstream channel. This object returns 0 if the frequency is undefined or unknown. Minimum permitted upstream frequency is 5,000,000 Hz for current technology. See the associated conformance object for write conditions and limitations. The legal range may be restricted further, depending on the provisioned width of the channel. For Docsis: 5.1-41.9 MHz for a 200 kHz channel 5.2-41.8 MHz for a 400 kHz channel 5.4-41.6 MHz for a 800 kHz channel 5.8-41.2 MHz for a 1600 kHz channel 6.6-40.4 MHz for a 3200 kHz channel For Euro-Docsis: 5.1-64.9 MHz for a 200 kHz channel 5.2-64.8 MHz for a 400 kHz channel 5.4-64.6 MHz for a 800 kHz channel 5.8-64.2 MHz for a 1600 kHz channel 6.6-63.4 MHz for a 3200 kHz channel Note that this entry will be read-only if cadIfUpChannelCloneGroupId is nonzero. |
| I32 cadIfUpChannelId | 1.3.6.1.4.1.4998.1.1.15.3.2.1.2 | Integer32 | read-only | The CMTS identification of the upstream channel. |
| NUM cadIfUpChannelIfIndex | 1.3.6.1.4.1.4998.1.1.15.3.2.1.57 | InterfaceIndex | not-accessible | IfIndex of this upstream channel. |
| U32 cadIfUpChannelIngressCancellationInterval | 1.3.6.1.4.1.4998.1.1.15.3.2.1.64 | Unsigned32 | read-write | The interval at which reserved burst intervals are scheduled for ingress cancellation analysis. A value of zero indicates ingress cancellation is disabled. |
| U32 cadIfUpChannelIngressCancellationSize | 1.3.6.1.4.1.4998.1.1.15.3.2.1.65 | Unsigned32 | read-write | The number of minislots granted for each reserved burst interval that is scheduled for ingress cancellation analysis. A value of zero indicates the grant size will be automatically calculated based upon. the size that is required and the upstream parameters. |
| I32 cadIfUpChannelMapSize | 1.3.6.1.4.1.4998.1.1.15.3.2.1.13 | Integer32 | read-write | The average size of MAPs in 800usec ticks. |
| I32 cadIfUpChannelMaxPowerAdjust | 1.3.6.1.4.1.4998.1.1.15.3.2.1.17 | Integer32 | read-write | Maximum size of the CMTS range response power adjustments in 1/4 dBmV units. |
| I32 cadIfUpChannelModulationProfile | 1.3.6.1.4.1.4998.1.1.15.3.2.1.6 | Integer32 | read-write | An entry identical to the cadIfModIndex in the cadIfCmtsModulationTable that describes this channel. This channel is further instantiated there by a grouping of interval usage codes which together fully describe the channel modulation. This object returns 0 if the cadIfCmtsModulationTable entry does not exist or cadIfCmtsModulationTable is empty. See the associated conformance object for write conditions and limitations. Note that this entry will be read-only if cadIfUpChannelCloneGroupId is nonzero. |
| U32 cadIfUpChannelNumberEqTaps | 1.3.6.1.4.1.4998.1.1.15.3.2.1.70 | Unsigned32 | read-write | Contains the number of taps to be used by the upstream receiver's equalizer for non-ranging IUCs. Default value of 24 taps. |
| I32 cadIfUpChannelPCEmerAllowedUsage | 1.3.6.1.4.1.4998.1.1.15.3.2.1.54 | Integer32 | read-write | Maximum percentage of upstream resources that may be used by emergency telephony services. The default is set from the globals in CadPcMibBase. |
| I32 cadIfUpChannelPCEmerResUsage | 1.3.6.1.4.1.4998.1.1.15.3.2.1.55 | Integer32 | read-write | Minimum percentage of upstream resources that may be used by emergency telephony services. If the value of this object is non-zero, then a portion of the upstream bandwidth will be set aside for emercency telephony use only - reducing the bandwidth that is available for normal data. The default is set from the globals in CadPCMibBase. |
| I32 cadIfUpChannelPCNormAllowedUsage | 1.3.6.1.4.1.4998.1.1.15.3.2.1.52 | Integer32 | read-write | Maximum percentage of upstream resources that may be used by non-emergency telephony services. This is also the maximum amount of resources non-exclusively allocated to sessions of this type. The default set from the globals in CadPcMibBase. |
| I32 cadIfUpChannelPCNormResUsage | 1.3.6.1.4.1.4998.1.1.15.3.2.1.53 | Integer32 | read-write | Minimum percentage of upstream resources that may be used by non-emergency telephony services. This is also the maximum amount of resources exclusively allocated to sessions of this type. If the value of this object is non-zero, then a portion of the upstream bandwidth will be set aside for normal telephony use only - reducing the bandwidth that is available for normal data. The default is set from the globals in CadPcMibBase. |
| T/F cadIfUpChannelPCPreemptionAllowed | 1.3.6.1.4.1.4998.1.1.15.3.2.1.66 | TruthValue | read-write | Indicates whether the system will preempt another session for an emergency call. The default is set from the globals in CadPcMibBase. |
| I32 cadIfUpChannelPCTotalAllowedUsage | 1.3.6.1.4.1.4998.1.1.15.3.2.1.56 | Integer32 | read-write | Maximum percentage of upstream resources that may be used by both normal and emergency telephony services. The default is set from the globals in CadPcMibBase. |
| I32 cadIfUpChannelPowerDesired | 1.3.6.1.4.1.4998.1.1.15.3.2.1.7 | Integer32 | read-write | The CMTS desired receive power level. See Cadant documentation for range limitations due to ChannelWidth. If this CMTS interface does not support control of the receive power level then this will be treated as read-only. |
| T/F cadIfUpChannelPreEqEnable | 1.3.6.1.4.1.4998.1.1.15.3.2.1.22 | TruthValue | read-write | If true(1), then send back equalizer coefficients to the CMs to help them offset upstream channel noise. |
| I32 cadIfUpChannelRangingBackoffEnd | 1.3.6.1.4.1.4998.1.1.15.3.2.1.10 | Integer32 | read-write | The final random backoff window to use when retrying Ranging Requests. Expressed as a power of 2. A value of 16 at the CMTS indicates that a proprietary adaptive retry mechanism is to be used. See the associated conformance object for write conditions and limitations. |
| I32 cadIfUpChannelRangingBackoffStart | 1.3.6.1.4.1.4998.1.1.15.3.2.1.9 | Integer32 | read-write | The initial random backoff window to use when retrying Ranging Requests. Expressed as a power of 2. A value of 16 at the CMTS indicates that a proprietary adaptive retry mechanism is to be used. See the associated conformance object for write conditions and limitations. |
| U32 cadIfUpChannelScdmaActiveCodes | 1.3.6.1.4.1.4998.1.1.15.3.2.1.58 | Unsigned32 | read-write | Applicable for SCDMA channel types only. Number of active codes. Returns zero for Non-SCDMA channel types. Note that legal values from 64..128 MUST be non-prime. |
| I32 cadIfUpChannelScdmaCodesPerSlot | 1.3.6.1.4.1.4998.1.1.15.3.2.1.59 | Integer32 | read-write | Applicable for SCDMA channel types only. The number of SCDMA codes per mini-slot. Returns zero if the value is undefined, unknown or in case of a TDMA or ATDMA channel. |
| U32 cadIfUpChannelScdmaFrameSize | 1.3.6.1.4.1.4998.1.1.15.3.2.1.60 | Unsigned32 | read-write | Applicable for SCDMA channel types only. SCDMA Frame size in units of spreading intervals. This value returns zero for non SCDMA Profiles. |
| U32 cadIfUpChannelScdmaHoppingSeed | 1.3.6.1.4.1.4998.1.1.15.3.2.1.61 | Unsigned32 | read-write | Applicable for SCDMA channel types only. 15 bit seed used for code hopping sequence initialization. Returns zero for non-SCDMA channel types. |
| U32 cadIfUpChannelSlotSize | 1.3.6.1.4.1.4998.1.1.15.3.2.1.8 | Unsigned32 | read-write | The number of 6.25 microsecond ticks in each upstream mini- slot. Returns zero if the value is undefined or unknown. See the associated conformance object for write conditions and limitations. |
| I32 cadIfUpChannelSpGroupIndex | 1.3.6.1.4.1.4998.1.1.15.3.2.1.69 | Integer32 | read-write | An entry identical to the cadSpMgtGroupIndex in the cadSpMgtGroupTable that describes the upstream spectrum management group. A value of zero means that upstream spectrum management is disabled for this upstream channel. |
| I32 cadIfUpChannelThresholdPowerOffset | 1.3.6.1.4.1.4998.1.1.15.3.2.1.18 | Integer32 | read-write | Ranging success threshold for CM power measured. |
| I32 cadIfUpChannelTxBackoffEnd | 1.3.6.1.4.1.4998.1.1.15.3.2.1.12 | Integer32 | read-write | The final random backoff window to use when retrying transmissions. Expressed as a power of 2. A value of 16 at the CMTS indicates that a proprietary adaptive retry mechanism is to be used. See the associated conformance object for write conditions and limitations. |
| I32 cadIfUpChannelTxBackoffStart | 1.3.6.1.4.1.4998.1.1.15.3.2.1.11 | Integer32 | read-write | The initial random backoff window to use when retrying transmissions. Expressed as a power of 2. A value of 16 at the CMTS indicates that a proprietary adaptive retry mechanism is to be used. See the associated conformance object for write conditions and limitations. |
| DOC cadIfUpChannelType | 1.3.6.1.4.1.4998.1.1.15.3.2.1.62 | DocsisUpstreamType | read-write | Defines the Upstream channel type. Given the channel type, other channel attributes can be checked for value validity at the time of entry creation and update. |
| I32 cadIfUpChannelWidth | 1.3.6.1.4.1.4998.1.1.15.3.2.1.5 | Integer32 | read-write | The bandwidth of this upstream channel. This object returns 0 if the channel width is undefined or unknown. Minimum permitted channel width is 200,000 Hz currently. See the associated conformance object for write conditions and limitations. Note that this entry will be read-only if cadIfUpChannelCloneGroupId is nonzero. |
| T/F cadIfUpChannelZeroFreqAdjust | 1.3.6.1.4.1.4998.1.1.15.3.2.1.20 | TruthValue | read-write | If TRUE, then do NOT send frequency adjustments in the ranging responses. |
| T/F cadIfUpChannelZeroPowerAdjust | 1.3.6.1.4.1.4998.1.1.15.3.2.1.19 | TruthValue | read-write | If TRUE, then do NOT send power adjustments in the ranging responses. |
| T/F cadIfUpChannelZeroTimingAdjust | 1.3.6.1.4.1.4998.1.1.15.3.2.1.21 | TruthValue | read-write | If TRUE, then do NOT send timing adjustments in the ranging responses. |
| cadIfUpstreamChannelEntry | 1.3.6.1.4.1.4998.1.1.15.3.2.1 | not-accessible | List of attributes for a single upstream channel. For Docsis 2.0 CMTSs, an entry in this table exists for each ifEntry with an ifType of docsCableUpstreamChannel (205). For Docsis 1.x CM/CMTSs and Docsis 2.0 CMs, an entry in this table exists for each ifEntry with an ifType of docsCableUpstreamInterface (129). | |
| cadIfUpstreamChannelTable | 1.3.6.1.4.1.4998.1.1.15.3.2 | not-accessible | This table describes the attributes of attached upstream channels. | |
| I32 cadUnicastFastPollInterval | 1.3.6.1.4.1.4998.1.1.15.3.6.1.3 | Integer32 | read-write | The fast poll interval represents the polling rate desired while traffic is flowing. A value of 0 disables fast polling |
| I32 cadUnicastFastPollTimeout | 1.3.6.1.4.1.4998.1.1.15.3.6.1.4 | Integer32 | read-write | The fast poll timeout represents the amount of time in fast polling before transitioning back to slow polling. This is expected to be used during call setup/teardown. A value of 0 sets the timeout to a single interval. |
| cadUnicastPollingEntry | 1.3.6.1.4.1.4998.1.1.15.3.6.1 | not-accessible | Matrix of polling intervals used for various flow priorities. | |
| cadUnicastPollingTable | 1.3.6.1.4.1.4998.1.1.15.3.6 | not-accessible | This table contains the polling intervals used by the unicast polling algorithm of the MapMaker. This allows the MapMaker to adjust the polling for a service flow based on the flow's priority and data characteristics. | |
| I32 cadUnicastPriority | 1.3.6.1.4.1.4998.1.1.15.3.6.1.1 | Integer32 | not-accessible | An index repesenting the DOCSIS service flow priority. |
| I32 cadUnicastSlowPollInterval | 1.3.6.1.4.1.4998.1.1.15.3.6.1.2 | Integer32 | read-write | The slow poll interval repesents the worst cast latency for the first message when traffic is just starting. Broadcast opportunities should be used to help avoid this being hit. A value of 0 disables all polling for this priority. |
| T/F cadUpchannelCaCertDropEnable | 1.3.6.1.4.1.4998.1.1.15.3.5.8 | TruthValue | read-write | Prevents storage of newly learned untrusted or invalid certificates if set this object to true. |
| cadUpchannelCompliance | 1.3.6.1.4.1.4998.1.1.15.3.7.1.1 | The compliance statement for Arris Upstream channel interfaces. | ||
| cadUpchannelCompliances | 1.3.6.1.4.1.4998.1.1.15.3.7.1 | |||
| cadUpchannelConformance | 1.3.6.1.4.1.4998.1.1.15.3.7 | |||
| T/F cadUpchannelDsaRspSidTlvOverride | 1.3.6.1.4.1.4998.1.1.15.3.5.11 | TruthValue | read-write | When this object is set to true, CMTS will include the SID in Upstream Service Flow TLV 24.3 in a DSA-RSP and not include a SID cluster TLV for a US flow when the REG-RSP contains a SID cluster TLV for Mx1 downstream bonded modems. |
| INT cadUpchannelFreqRange | 1.3.6.1.4.1.4998.1.1.15.3.5.6 | INTEGER | read-write | This object is used to configure the C4 CMTS to accept upstream frequency ranges that conform with the EuroDOCSIS specifications (5 MHz to 65 MHz), to the extended range used in Japan (5 MHz to 55 MHz), or to the DOCSIS specifications (5 MHz to 42 MHz), or to the Arris extended range (5 MHz to 85 MHz). Changes to upstream frequency and width are verified against this object to ensure the C4 CMTS does not exceed the upstream spectrum limits imposed by this object. Attempting to narrow the upstream frequency spectrum implied by this object will fail if at least a single upstream is configured outside of the range for the new value. It is recommended this object be set during initial system setup. |
| cadUpchannelGroup | 1.3.6.1.4.1.4998.1.1.15.3.7.2.1 | Group of objects required for implementing upstream channels in the Arris C4. | ||
| cadUpchannelGroups | 1.3.6.1.4.1.4998.1.1.15.3.7.2 | |||
| cadUpchannelMib | 1.3.6.1.4.1.4998.1.1.15.3 | Arris C4 Upstram Channel Configuration and Constants | ||
| cadUpchannelParams | 1.3.6.1.4.1.4998.1.1.15.3.5 | |||
| I32 cadUpchannelRangingTimingOffset | 1.3.6.1.4.1.4998.1.1.15.3.5.9 | Integer32 | read-write | This object controls TLV 46.8.2, an offset from the reference channel, to set the Ranging Offset of the burst transmission for the new channel so that bursts arrive at the expected mini-slots time at the CMTS. The units are (1/10.24MHz) = 97.65625 ns. A negative value implies the Ranging Offset is to be decreased, resulting in later times of transmission at the CM. The CMTS MUST include this TLV within the TCC when the Upstream Channel Action is Add or Replace and Initialization Technique has a value of 2, 3 or 4. |
| INT cadUpchannelRecoverImpairedOnAck | 1.3.6.1.4.1.4998.1.1.15.3.5.10 | INTEGER | read-write | This parameter controls whether and how to attempt to recover an US channel if it is impaired after receipt of a REG-ACK or DBC-ACK. If set to attempt_indefinite_recovery, then if an US is impaired, the E6000 attempts to recover the US channel after receipt of the REG/DBC-ACK indefinitely. Note that this object is an INTEGER instead of a TruthValue to allow for other future values that may alter the method of recovery of US channels that are impaired due to being reported as impaired via a REG-ACK or DBC-ACK. |
| T/F cadUpchannelRtpsPiggybackEnable | 1.3.6.1.4.1.4998.1.1.15.3.5.7 | TruthValue | read-write | Allows piggybacking data requests when RTP bit'4' disabled if set this object to true. |
RFC description
Arris C4 cable modem termination system (CMTS) upstream channel configuration, including frequency settings and state management.
Start monitoring ARRIS/Cadant C4/E6000 CMTS (cable modem termination system) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.